EP3159639B1 - Process for cleaning furnace gas - Google Patents

Process for cleaning furnace gas Download PDF

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Publication number
EP3159639B1
EP3159639B1 EP15190600.5A EP15190600A EP3159639B1 EP 3159639 B1 EP3159639 B1 EP 3159639B1 EP 15190600 A EP15190600 A EP 15190600A EP 3159639 B1 EP3159639 B1 EP 3159639B1
Authority
EP
European Patent Office
Prior art keywords
gas
furnace gas
bar
filter
nozzles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15190600.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3159639A1 (en
Inventor
Wouter Bernd Ewalts
Pieter Dirk Klut
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Danieli Corus BV
Original Assignee
Danieli Corus BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to HUE15190600A priority Critical patent/HUE048984T2/hu
Application filed by Danieli Corus BV filed Critical Danieli Corus BV
Priority to SI201531127T priority patent/SI3159639T1/sl
Priority to PL15190600T priority patent/PL3159639T3/pl
Priority to RS20200278A priority patent/RS60058B1/sr
Priority to ES15190600T priority patent/ES2778077T3/es
Priority to EP15190600.5A priority patent/EP3159639B1/en
Priority to EA201890892A priority patent/EA035373B1/ru
Priority to JP2018540210A priority patent/JP6890600B2/ja
Priority to CA3002696A priority patent/CA3002696A1/en
Priority to PCT/EP2016/074767 priority patent/WO2017067861A1/en
Priority to KR1020187013908A priority patent/KR102535538B1/ko
Priority to UAA201805018A priority patent/UA122159C2/uk
Priority to CN201680069279.6A priority patent/CN108369071B/zh
Priority to MX2018004889A priority patent/MX2018004889A/es
Priority to BR112018008130-2A priority patent/BR112018008130B1/pt
Priority to AU2016342112A priority patent/AU2016342112B2/en
Priority to US15/770,061 priority patent/US20180304185A1/en
Priority to TW105133146A priority patent/TWI727978B/zh
Publication of EP3159639A1 publication Critical patent/EP3159639A1/en
Priority to CL2018001055A priority patent/CL2018001055A1/es
Priority to ZA2018/02972A priority patent/ZA201802972B/en
Priority to CONC2018/0004972A priority patent/CO2018004972A2/es
Application granted granted Critical
Publication of EP3159639B1 publication Critical patent/EP3159639B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/04—Cleaning filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/22—Dust arresters
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/38—Removal of waste gases or dust
    • C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C2100/00—Exhaust gas
    • C21C2100/02—Treatment of the exhaust gas
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the invention relates to a process for dry dust removal of furnace gas resulting from metal production processes, in particular steel or iron production processes, such as blast furnace gas or gas produced with electric arc furnaces (EAF), basic oxygen furnaces (BOF) or with direct reduced iron (DRI) processes.
  • metal production processes in particular steel or iron production processes, such as blast furnace gas or gas produced with electric arc furnaces (EAF), basic oxygen furnaces (BOF) or with direct reduced iron (DRI) processes.
  • EAF electric arc furnaces
  • BOF basic oxygen furnaces
  • DI direct reduced iron
  • Blast furnace gas typically has a relatively high carbon monoxide content, e.g., about 20 - 28 %, allowing use as a fuel gas in various types of burners.
  • the dust content of blast furnace gas leaving the blast furnace is typically about 10 - 40 g/Nm 3 , which is too high for use in such burners.
  • the dust content of the blast furnace gas must be lowered substantially. This is usually done with a two-step process. In a first step the larger dust particles are separated in a cyclone. In a second step the smaller particles are separated, usually by means of a scrubber in a wet process.
  • Such a wet process requires significant water consumption and produces sludge and waste water, which require further treatment.
  • the water scrubbing treatment also results in a drop of pressure and temperature of the treated blast furnace gas, which reduces its efficiency as a fuel gas in a downstream gas burner.
  • Bag filters can be cleaned by a backflow, usually an inert gas, such as nitrogen, as for instance is disclosed in Lanzerstorfer and Xu, "Neue Engineeringen Kunststoff Gichtgasgraphy von Hochofen: ein Uberblick", BH, vol. 195, p. 91-98, 2014 .
  • This can be done off-line or on-line.
  • Off-line cleaning interrupts the filtering process.
  • On-line cleaning has the drawback that the nitrogen gas cools and dilutes the blast furnace gas. To minimize this effect, the nitrogen flow must be ejected with short, very strong pulses using a minimum of nitrogen. These pulses should be very strong to create a shockwave opposite to the 2,5 bar main flow.
  • the maximum length of the filter bags that can be cleaned with such on-line backflows is typically about 4 meters.
  • the object of the invention is achieved with a process for cleaning furnace gas according to claim 1.
  • filtered blast furnace gas for an on-line backflow does not cool or dilute the main blast furnace gas flow. Therefore, much larger amounts can be used than would be possible with nitrogen gas, so the pulses can be longer and may be less strong. Since larger amounts of backflow gas can be used per pulse, the filter bags that can be used, can be made much longer.
  • the returned backflow gas can be separated from the main flow continuously or intermittently, for instance when the differential pressure over the tube sheet is too high.
  • the amount of returned gas may for example be about 0.1 to about 0.5 vol.% of the main gas flow.
  • Part of the claimed invention includes that the nozzles are arranged in an arm which is movable over the array of bag filters.
  • the array of bag filters can for example comprise a number of concentric circular arrays, making maximum use of the space in the housing of the filter device, which is typically cylindrical in view of the pressurized process conditions.
  • the arm with the nozzles may for instance be a rotating arm rotating about a central axis that is coaxial with the circular array of bag filters.
  • the respective nozzles are arranged to pass bag filters having corresponding radial positions during rotation of the rotational arm, so each bag filter is passed by at least one nozzle during a cycle.
  • the filter bags and the openings in the tube sheet may for example be circular or oval.
  • Using oval filter bags helps to make optimum use of space if the filter bags are arranged in concentric circular arrays. Moreover, the time that a passing nozzle will be above a filter bag will be longer if the filter bags are oval with a radially extending short axis and a tangentially extending long axis, so the backflow pulses will be longer.
  • the pressure in the blast furnace gas flow in the main direction is typically at least 1,5 bar, e.g., at least 2 or at least 2,5 bar.
  • the backflow pressure may for instance be about 0,1 - 1,2 bar, e.g., 0,5 - 1,0 bar, e.g., about 0,8 bar higher than the pressure within main gas flow in the main flow direction.
  • the disclosed process can effectively be carried out with a filter device for cleaning processing gas in a metal production process, comprising at least one vessel with:
  • Figure 1 shows a lay out for a filtering device 1 for filtering blast furnace gas or process gas from similar metal production processes.
  • the gas is supplied from direction A.
  • the gas is first treated by means of a dust removal device, such as a cyclone, e.g., for removal of larger dust particles, and/or the gas may first be cooled, e.g., to reduce temperature peaks, and/or treated with absorbents and/or basic agents to remove acidic and organic contaminants.
  • a dust removal device such as a cyclone, e.g., for removal of larger dust particles
  • the gas may first be cooled, e.g., to reduce temperature peaks, and/or treated with absorbents and/or basic agents to remove acidic and organic contaminants.
  • the blast furnace gas is distributed over a number of filter stations 2, in the shown exemplary arrangement four filter stations.
  • Each one of the filter stations 2 comprises a cylindrical pressure vessel with a gas inlet 4 at a bottom section 5 of the vessel 2 and a gas outlet 6 at the top section 7 of the vessel 2.
  • the blast furnace gas flows in a main flow direction A from the bottom section 5 of the vessel 2 to the top section 7.
  • a circular tube sheet 9 is positioned at the top section 7 of the vessel 2.
  • the tube sheet 9 is provided with concentric circular arrays of oval openings 11 (see Figure 2 ).
  • the oval openings 11 have short axes in radial direction and long axis extending in tangential direction, relative to the central axis of the tube sheet.
  • a filter bag 13 with a corresponding oval outline in top view hangs down from each opening 11.
  • Each filter bag 13 has an open end connecting to the respective opening 11 in the tube sheet 9, and a closed end 14 at its opposite end.
  • An open frame (not shown) is positioned in each filter bag 13 to keep the filter bag 13 open against the pressure of the main blast furnace gas flow.
  • the peripheral edge of the tube sheet 9 is connected to the inner wall of the vessel 2, so that all of the blast furnace gas is forced to flow via the filter bags 13 in the openings 11.
  • the outlets 6 of the vessels 2 open into a common discharge line 15 where the filtered gas is discharged via a conventional top gas recovery turbine 18 in order to reduce the pressure by means of expansion. After the pressure reduction the gas can be used as a fuel for burners.
  • a conventional pressure reduction valve 17 may be used as a back-up in case the top gas recovery turbine would not be operational.
  • a main return line 19 branches off from the common discharge line 15 and splits into a number of return lines 21, one return line for each one of the vessels 2.
  • the main return line 19 comprises a gas booster 23 increasing the pressure of the return flow to a level above the pressure in the main gas flow.
  • Each return line 21 connects to a rotor 25, shown in more detail in Figures 2 and 3 .
  • the rotor 25 defines a substantially vertical central channel 27 coaxially positioned within the vessel interior in the space above the tube sheet 9.
  • the rotor 25 is rotatable about a longitudinal axis X of the central channel 27.
  • the rotor 25 comprises a number of radial hollow arms 29 connected to the lower end of the central channel 27.
  • the radial arms 29 define channels with nozzles 28 at their side facing the tube sheet 9.
  • the radius of each circle of openings 11 corresponds to the radial position of at least one of the nozzles 28 of at least one of the radial arms 29.
  • each spacing between two adjacent nozzles 28 of the arm 29 equals three times the distance between an opening 11 in the tube sheet 9 and a next opening 11 in radial direction.
  • the nozzles 28 of the other two arms 29 are arranged in such a way that they clean the remaining filter bags 13. Hence, during each full rotation of the rotor 25 each opening 11 in the tube sheet 9 is passed once by a nozzle 13 of one of the radial arms 29.
  • a door 30 provides access to the space above the tube sheet 9 for maintenance or repair.
  • the bottom sections 5 of the respective vessels 2 are conical and collect separated dust.
  • Below the conical sections 5 of the vessels 2 are dust collection bins 31 connecting to a dust discharge line 32.
  • Raw blast furnace gas is supplied to the vessels 2 and passes the bag filters 13 in a main flow direction A.
  • the pressure in the main flow at the inlet 4 of the vessel 2 is typically about 2,5 bar. Filtered gas is collected in the top sections 7 of the vessels 2, while dust remains at the outer surface of the filter bags 13.
  • Filtered gas collected downstream the tube sheet 9 is discharged via the respective outlets 6 and the discharge line 15. Part of the gas is continuously withdrawn via the return line 19.
  • the gas booster 23 increases the pressure, e.g., to at least 3,3 bar, 0,8 bar higher than the pressure in the main flow.
  • Filtered gas flows via the return lines 21 to the top sections 7 of the respective vessels 2, via the central channel 27 and the three radial arms 29 of the rotor 25, where the gas is blown by the nozzles 28 in a backflow direction B which is opposite to the main flow direction A.
  • the nozzles 28 blow the clean gas into the respective tube sheet openings 11 facing the respective nozzles when the nozzles pass by during rotation of the rotor 25. Since the central channel 27 and the radial arms 29 are continuously rotated each opening 11 is passed by a blowing nozzle 28 during a full rotation cycle of the rotor 25.
  • the gas blows into the openings 11 with an overpressure of, for example, about 0,8 bar. Dust collected on the outer surface of the filter bags 13 is blown away and falls down to the bottom section 5 of the vessel 2. This restores the filter capacity of the bag filter 13.
  • a dust discharge valve is opened and the dust is collected in the respective collecting bins 31.
  • the dust is further discharged via the dust discharge line 32, e.g., for further treatment.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Blast Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
EP15190600.5A 2015-10-20 2015-10-20 Process for cleaning furnace gas Active EP3159639B1 (en)

Priority Applications (21)

Application Number Priority Date Filing Date Title
SI201531127T SI3159639T1 (sl) 2015-10-20 2015-10-20 Postopek za čiščenje plavžnega plina
PL15190600T PL3159639T3 (pl) 2015-10-20 2015-10-20 Sposób oczyszczania gazu piecowego
RS20200278A RS60058B1 (sr) 2015-10-20 2015-10-20 Postupak za prečišćavanje pećnog gasa
ES15190600T ES2778077T3 (es) 2015-10-20 2015-10-20 Procedimiento para limpiar gas de horno
EP15190600.5A EP3159639B1 (en) 2015-10-20 2015-10-20 Process for cleaning furnace gas
HUE15190600A HUE048984T2 (hu) 2015-10-20 2015-10-20 Kemencegáz tisztításának folyamata
JP2018540210A JP6890600B2 (ja) 2015-10-20 2016-10-14 炉頂ガスを浄化するための方法およびフィルタ装置
CA3002696A CA3002696A1 (en) 2015-10-20 2016-10-14 Process and filter device for cleaning furnace gas
PCT/EP2016/074767 WO2017067861A1 (en) 2015-10-20 2016-10-14 Process and filter device for cleaning furnace gas
KR1020187013908A KR102535538B1 (ko) 2015-10-20 2016-10-14 노 가스를 정화하기 위한 공정 및 필터 장치
EA201890892A EA035373B1 (ru) 2015-10-20 2016-10-14 Способ и фильтрующее устройство для очистки печного газа
UAA201805018A UA122159C2 (uk) 2015-10-20 2016-10-14 Спосіб очищення доменного газу
CN201680069279.6A CN108369071B (zh) 2015-10-20 2016-10-14 用于清洁高炉炉气的工艺和过滤装置
MX2018004889A MX2018004889A (es) 2015-10-20 2016-10-14 Proceso y dispositivo de filtro para limpiar gases de horno.
BR112018008130-2A BR112018008130B1 (pt) 2015-10-20 2016-10-14 Processo para a limpeza de gases de alto-forno e dispositivo de filtro
AU2016342112A AU2016342112B2 (en) 2015-10-20 2016-10-14 Process and filter device for cleaning furnace gas
US15/770,061 US20180304185A1 (en) 2015-10-20 2016-10-14 Process and filter device for cleaning furnace gas
TW105133146A TWI727978B (zh) 2015-10-20 2016-10-14 清潔爐氣的方法及過濾裝置
CL2018001055A CL2018001055A1 (es) 2015-10-20 2018-04-20 Proceso y dispositivo de filtro para la limpieza del gas de horno
ZA2018/02972A ZA201802972B (en) 2015-10-20 2018-05-07 Process and filter device for cleaning furnace gas
CONC2018/0004972A CO2018004972A2 (es) 2015-10-20 2018-05-10 Proceso y dispositivo de filtro para limpiar gases de horno

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15190600.5A EP3159639B1 (en) 2015-10-20 2015-10-20 Process for cleaning furnace gas

Publications (2)

Publication Number Publication Date
EP3159639A1 EP3159639A1 (en) 2017-04-26
EP3159639B1 true EP3159639B1 (en) 2019-12-25

Family

ID=54359914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15190600.5A Active EP3159639B1 (en) 2015-10-20 2015-10-20 Process for cleaning furnace gas

Country Status (21)

Country Link
US (1) US20180304185A1 (zh)
EP (1) EP3159639B1 (zh)
JP (1) JP6890600B2 (zh)
KR (1) KR102535538B1 (zh)
CN (1) CN108369071B (zh)
AU (1) AU2016342112B2 (zh)
BR (1) BR112018008130B1 (zh)
CA (1) CA3002696A1 (zh)
CL (1) CL2018001055A1 (zh)
CO (1) CO2018004972A2 (zh)
EA (1) EA035373B1 (zh)
ES (1) ES2778077T3 (zh)
HU (1) HUE048984T2 (zh)
MX (1) MX2018004889A (zh)
PL (1) PL3159639T3 (zh)
RS (1) RS60058B1 (zh)
SI (1) SI3159639T1 (zh)
TW (1) TWI727978B (zh)
UA (1) UA122159C2 (zh)
WO (1) WO2017067861A1 (zh)
ZA (1) ZA201802972B (zh)

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CN110184411B (zh) * 2019-07-18 2023-12-05 无锡红旗除尘设备有限公司 转炉一次烟气高效节能超净排放的全干法除尘系统
CN113304557B (zh) * 2021-04-30 2022-05-13 成都易态科技有限公司 除尘系统以及转炉炼钢一次烟气的除尘方法
CN113274813B (zh) * 2021-05-31 2022-07-26 府谷县佳民特种合金有限公司 一种间歇式清理布袋的布袋除尘器
SE545600C2 (en) * 2021-06-22 2023-11-07 Hybrit Dev Ab Hydrogen gas recycling in a direct reduction process
CN113340103A (zh) * 2021-08-05 2021-09-03 佛山市南海区辉泰科技机械有限公司 一种熔炼炉
JP7046303B1 (ja) 2021-09-07 2022-04-04 株式会社アールフロー 攪拌翼併用型流体吸引装置
CN113926274B (zh) * 2021-11-22 2023-02-21 安徽吉曜玻璃微纤有限公司 一种固化炉在线除尘装置

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KR102535538B1 (ko) 2023-05-22
CA3002696A1 (en) 2017-04-27
ZA201802972B (en) 2020-07-29
CL2018001055A1 (es) 2018-09-14
ES2778077T3 (es) 2020-08-07
CN108369071A (zh) 2018-08-03
HUE048984T2 (hu) 2020-09-28
AU2016342112B2 (en) 2022-08-18
CO2018004972A2 (es) 2018-07-31
TW201714659A (zh) 2017-05-01
PL3159639T3 (pl) 2020-06-29
RS60058B1 (sr) 2020-04-30
WO2017067861A1 (en) 2017-04-27
KR20180093894A (ko) 2018-08-22
SI3159639T1 (sl) 2020-06-30
BR112018008130B1 (pt) 2022-01-25
BR112018008130A2 (pt) 2018-11-06
TWI727978B (zh) 2021-05-21
EP3159639A1 (en) 2017-04-26
EA201890892A1 (ru) 2018-11-30
JP6890600B2 (ja) 2021-06-18
CN108369071B (zh) 2020-10-30
EA035373B1 (ru) 2020-06-03
AU2016342112A1 (en) 2018-05-24
US20180304185A1 (en) 2018-10-25
JP2018534527A (ja) 2018-11-22
UA122159C2 (uk) 2020-09-25
MX2018004889A (es) 2018-12-17

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